Casio 2369 Manuel de l'utilisateur - Page 2

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TIME CALIBRATION SIGNAL RECEPTION

This watch is designed to pick up a time calibration signal that is being transmitted

from Mainflingen, Germany and update its time setting in accordance with the signal.

There are two different methods you can use to receive the signal: auto receive and

manual receive. With auto receive, the watch automatically receives the calibration

signal twice each day and makes appropriate adjustments. With manual receive, you

perform a specific button operation to receive the calibration signal.

Important!

• If you are using the time calibration signal to set the time for this watch, be sure to

correctly set your home city. Otherwise, there is the chance that the watch will not

set the correct time. See the "To set your home city data" for details.

• Time calibration reception is limited to specific geographic areas in Europe. See

"Time calibration signal reception precautions" for details.

• The current time setting in accordance with the time calibration signal takes priority

over any time settings you make.

• The watch is designed to automatically update the date and day of the week for the

period January 1, 1995 to December 31, 2039. Setting of the date by the time

calibration signal cannot be performed starting from January 1, 2040.

• This watch can receive signals that differentiate between leap years and non-leap

years.

• After the watch successfully receives time calibration signal data, it first applies it to

adjust the digital time setting and then adjusts the analog setting to match the digital

time. If, for any reason, the digital time does not match the analog time, use the

procedure described under "HAND SETTING MODE" to match the analog setting

with the digital display.

• Auto receive is turned on when the watch is shipped from the factory.

To set your home city data

You can make Auto Receive on/off, DST (daylight saving time), and GMT differential

settings for your home city (the city where you normally use the watch). This data can

be changed any time you move to another geographic area.

1. Press B while in the Timekeeping Mode. The current

Auto Receive on/off setting flashes on the display

because it is selected .

• The receive indicator flashes along with the current on

(

2. Press D to toggle Auto Receive on and off.

3. Press C to change to another selection in the following

Receive indicator

sequence.

Auto

DST

Receive

CNT

Date

Month

4. Press C until the DST indicator is flashing on the display along with the current

auto receive setting (

AUTO

•

AUTO

Setting

Daylight saving time is activated and cancelled automatically in accordance with

time calibration signal data. Use this setting if you plan to use the watch in an

area where the daylight saving time period starts and ends on the dates used in

Germany.

•

Setting

One hour is added to the current time indicated by the time calibration signal and

adjusted in accordance with the GMT time differential setting you make.

•

OFF

Setting

Daylight saving time is not applied.

5. Use the A and D buttons to change the DST setting in the sequence shown

below.

Press D.

AUTO

Press A.

6. After making the setting you want, press C until the

the display.

• The value to the right of the

GMT

Greenwich Mean Time. This value is based on standard times only, and it does

not allow for daylight saving time (summer time).

7. Use the A and D buttons to change the GMT differential setting in the sequence

shown below.

Press D.

GMT+1

Press A.

8. After making all the home city settings you want, press B to return to the

Timekeeping Mode.

Time calibration signal reception precautions

• This watch is able to receive the time calibration signal

being transmitted from Mainflingen, Germany (located

25 kilometers southeast of Frankfurt). Signal reception is

possible within the area represented by a circle with a

radius of about 1200 kilometers.

• Even when the watch is within the reception range,

signal reception is impossible if the signal is blocked by

mountains or other geological formations between the

watch and signal source.

• Signal reception is affected by weather, atmospheric

Frankfurt

conditions, and seasonal changes.

• At long distances that are out of the line of sight of the signal transmitter, the signal

is bounced off of the ionosphere. Because of this, such factors as changes in the

reflectivity of the ionosphere, as well as movement of the ionosphere to higher

altitudes due to seasonal atmospheric changes or the time of day may change the

reception range of the signal and make reception temporarily impossible.

) /off (

) setting.

OFF

GMT

Language

differential

Year

Minutes

, or

OFF

GMT

indicator appears on

indicator is the time differential from

GMT+2

GMT+0

Nearby TVs, refrigerators, computers, or other household appliances.

Far away from broadcasting stations, among ferro-concrete structures or near

mountains.

Underground, in tunnels or in ferro-concrete buildings.

Near high-tension wires, neon signs, or radio stations with interfering frequencies.

Near railroads, highways or airports.

In trains or cars.

• Radio interference can cause incorrect signal reception.

• Strong electrostatic charge can result in the wrong time being set.

• The analog hands do not move during signal reception. The analog hand setting is

changed based on the digital time setting after the time calibration signal is

successfully received.

• The daily alarm and hourly time signal do not operate during signal reception.

• The receive indicator (

function is in progress.

• If you are in an area where proper time calibration signal reception is impossible, the

watch keeps time within ±20 seconds a month at normal temprature.

• The watch initially changes the digital time setting to match the data (German time)

received in the time calibration signal. Next, it adjusts the received time in

accordance with the GMT differential setting. Finally, the analog hands are adjusted

in accordance with the digital time setting.

To perform manual time calibration signal reception

Receive indicator

12/24-Hour

Format

Seconds

Hour

About Auto Receive

When auto receive is turned on, the watch automatically starts to receive the time

calibration signal when the digital time in the Timekeeping Mode reaches 2:00 AM and

4:00 AM each day (calibration times).

• The Auto Receive operation is performed only if the watch is in the Timekeeping

Mode or World Time Mode when one of the calibration times is reached. It is not

performed if the time is reached while you are making settings (while settings are

flashing on the display).

• Auto receipt of the calibration signal is designed to be performed early in the

morning, while you sleep (provided that the digital time is set correctly). Before going

to bed for the night, remove the watch from your wrist, and put it in a location where

it can easily receive the signal.

• The receive indicator (

time receipt attempts were successful.

• When auto receive is turned on, the watch receives the calibration signal for 8 to 15

minutes each day when the digital time reaches 2:00 AM and 4:00 AM. Do not

operate any of the watch's buttons within 15 minutes prior to or following the

calibration times. Doing so can interfere with correct calibration.

• Remember that receipt of the calibration signal depends on the time shown on the

digital display. The receive operation will be performed whenever the digital display

shows 2:00 AM and 4:00 AM, regardless of whether or not that is actually the correct

time.

• When both receipts are successful, the watch uses the data of the second receipt

for calibration. When only one receipt is successful, the watch uses the data of the

successful receipt.

• If an auto receive operation results in a wrong time or date setting (which can be

caused by radio interference or electromagnetic waves), try again using the manual

receive operation.

To turn auto receive on and off

1. Press B while in the Timekeeping Mode. The current Auto Receive on/off setting

flashes on the display because it is selected .

• The receive indicator flashes along with the current on (

2. Press D to toggle Auto Receive on and off.

3. Press B to return to the Timekeeping Mode.

Last signal receipt display

• This watch is designed to receive the signal transmitted

from Mainflingen. This means that reception is best

when the antenna built into the 12 o'clock edge of the

watch is facing towards Mainflingen. Note, however, that

moving the watch while the time calibration signal

receive operation is taking place will make stable

reception impossible.

• Proper signal reception can be difficult or even

impossible under the conditions listed below. When

receiving indoors, move to a location as near as

possible to a window. Think of the watch as acting like a

TV or radio when it is receiving the signal.

) flashes on the digital display while a signal receive

1. In the Timekeeping Mode, hold down A until the

figures in the digital display are cleared (about three

seconds).

2. Release A to start time calibration signal reception,

which is indicated by the flashing receive indicator.

• Time calibration signal reception takes from 8 to 15

minutes.

• When the receive operation is successful, the

message

LAST RECEIPT

display together with the received time and date for

about one or two minutes. Next, the watch returns to

the Timekeeping Mode.

• When the receive operation is unsuccessful, the

message

ERROR

appears on the display together

with the date and time of the last successful receipt

for about one or two minutes. Next, the watch returns

to the Timekeeping Mode.

• Pressing A while the

LAST RECEIPT

ERROR

message is on the display returns to the

Timekeeping Mode.

• To interrupt a receive operation and return to the

Timekeeping Mode, press A.

) indicates that at both or at least one of the last calibration

In the Timekeeping Mode, press A to display the date and

time of the last successful receipt.

• The last receipt data remains on the display for about

one or two minutes or until you press A again to return

to the Timekeeping Mode.

2369-2

appears on the

) /off (

OFF

) setting.